1 An insoluble substance which is the main constituent of plant cell walls and of vegetable fibres such as cotton. It is a polysaccharide consisting of chains of glucose monomers.
2 Paint or lacquer consisting principally of cellulose acetate or nitrate in solution.
Mid 19th century: from French, from cellule ‘small cell’ + -ose.
Ben was bored of smoothing boards. He would much prefer to be dying cotton. The fact that wood and cotton are both cellulose fibers didn’t matter to him at all